Attachment for type-writing machines.



No. 716,720. Patented Dec. 23, I902.

C. R KELLY.

ATTACHMENT FOR TYPE WRITING MACHINES.

(Application filed A pi', 7, 1902.)

(No Model.)

WITNESSES- j ZNVENTOR 3 Charles RJYeZL Nrrnn STATES,

FFICE.

PATENT ATTACHMENT FOR TYPE-=WRIT!NG MACHINES.

SPECIFIGATI ON forming part of Letters Patent No. 716,720, datedDecember 23, 1902. Applicationfiledrlpril 7, 1902. Serial No; 101,814.(No model.)

To all whom, it may concern;

Be it known that I, CHARLES R. KELLY,

of Louisville, in the county of Jefferson and State of Kentucky, haveinvented certain new and useful Improvements in .Attachments forType-WritingMachines; and Therefected simply by depressing a treadle orother:

suitable connection operative by the foot or leg of the operator, theobject being to enable the operator to use his hands exclusively forwriting, and thus save the time ordinarily required for turning theplaten and returning the carriage to the right at the end of each lineby the usual hand-lever on the machine.

The present invention is particularly ap plicable to shiftingplatenmachines, such as the Remington type-writer; and an additional object ofthe invention is to prevent the pull of the platen-turning devicesshifting the platen laterally, without, however, interfering with thecarriage movements if the platen should have been shifted laterally andso held by the shift-key when desired to write with capitals or numeralsonly.

The foregoing objects are attained by'the presentinvention, whichconsists in the novel combinations and constructions of parts of thedevices shown in the accompanying drawings and hereinafter described andclaimed, and, referring to the claims for a summary of the invention,Iwill proceed to describe it in detail as applied to aRemingtontype-writing machine.

Figure l is a top plan View of part of a Remington type-writing machinewith-my improved platen-turning and carriage-returning devices connectedtherewith, said devices being shown in inactive position in full linesand in position assumed when actuated in dotted lines. Fig. 2 is adetail view of the main lever and connections. Fig. 3 isa detail'view ofthe bell-crank lever and connections. Fig. 4 is a detail sectional Viewof the treadle. Fig. 5 is a rear view of the part shown in Fig, 2. Fig.6 is a detail.

In said drawings, A designates part of a Remington typewriting machine,having a movable carriage B, on which is mounted a laterally movable orshifting platen C, all constructed as in the well-known No. 6 Remingtontype-writer, andneed not be further particularly described nor shown indetail in the drawings. The invention, however, is not restricted to usewith the Remington typewriter, which is used for convenience ofexplanation, and when understood it will be readily perceived that theinvention is adaptable to other styles oftype-writing machines and canbe readily applied thereto by expert mechanics.

On the right-hand end of the rear bar Z) of the carriage B is detachablysecured a clip D, Fig. 3, having a pair of depending flanges (1 cl,adapted to embrace the bar b, one of said flanges being lipped at cl tocatch under the bar, and the other having a screw 62 tapped through itto engage under the bar and retain the clip thereon. From this cliprises a short standard D, on which is pivoted a bell-crank lever E, theshort arm of which is connected by a cord e (or other suitableconnection) to the upper arm of the platenturning lever C, which ispivoted on the front of the carriage and provided with a pawl c,engaging a ratchet C on the platen C in the usual manner, so that whenthe upper end of lever O is moved inward the platen is turned. The frontend of cord e may be attached to lever O in any suitable way. As shown,the screw 0', which connects the pawl c to lever C, is provided with anelongated grooved head 0 to which the cord is attached. I do not,however, restrict myself to this particular screw attachment.

The longer arm of lever E extends rearwardly and is connected by a linkE to one .end of an oscillating lever E, which is pivoted on a shortstandard g, rising from a plate or bracket Gr, which is also detachablysecured to the rear bar of the carriage, about centrally thereof, saidbracket having depending flanges G to embrace the bar and the rearmostflange being provided with a retaining screw or screws G as shown. Thebracket projects rearwardly beyond the bar, and on this extended portionthe lever F is pivoted.

A spring H is arranged to normally rock lever F, so that its inner endmoves toward lever E when released, a stop g on bracket G .properlylimiting this movement of lever F,

however. The bracket G extends rearwardly beyond standard g and isprovided with a vertical lug G on which is pivoted avertically-oscillating latch-lever I, the front end of which extends toand lies above the rod C of the platen-cradle and permits the platen tobe shifted laterally to use capitals or other type, as usual; but if thefront end of latch drops behind the rod 0 this lateral shift of platenwill be prevented. The rear end of latch I is provided with a beveledlug 1,- adapted to be engaged by the rear end of lever F in the normalposition of the latter and forced down, thus raising the front end oflatch I and holding it normally over and above the rear rod 0 of thecradle in which the platen O is hung on the carriage; but when lever Fis moved by a pull on its rear end to the position indicated in dottedlines, Fig. 1, latch I is released and front end will drop down behindrod C and thus prevent the pull on cord 6 shifting the platen laterallyon the carriage. If the platenhad been previously shifted, however, sothat rod C is under the forward end of latch I, no harm results, as thelatch rests on the rod. A light spring f is attached to the inner end oflever F and is adapted to depress the front end of latch I when lever Fis properly oscillated. To the rear end of lever F is connected a cordf, which passes over a pulley 7', mounted in a bracket J, detachablysecured to the frame of the type-writer, as shown, and thence to asuitable manipulating device. I preferably employ a treadle device toactuate the cord, as shown in Fig. 4. This comprises a large and a smallpulley K 70, fixed together and both journaled on a pin L attached to astandard L, rising from a base L, a treadle M being fulcrumed on thebase, and one end of the treadle is connected by a cord m to the smallpulley 75, while the cordf is attached to the large pulley K. Upondepressing the treadle so as to rotate pulley 7c the cord f will bewrapped upon pulley K, and the pull on the cord will first oscillatelever F to the position shown in dotted lines, Fig. 1, and then pull thelever and carriage to the right-hand position. This movement of lever Factuates lever E and causes it, through cord 6, to actuate lever C andturn the platen before the carriage moves to the right, and latch Ibeing released before the platen is turned will drop behind rod 0 andprevent the pull on lever C shifting the platen laterally on thecarriage.

A spring K is arranged to return the pulleys K to normal position. Thisspring is placed on pin L and may be partly concealed in a recess in thepulley K, one end of spring being fast to the pulley, the other part tothe standard. When treadle is released, the cord f is immediatelyrelaxed, and spring H returns lever F to position shown in full lines,Fig. 1, thereby raising lever I and shifting lever E to relax cord 6 andpermit the pawl c to move back to position preparatory to again turningthe platen.

These attachments permit the machine to be used for one, two, or threespace lines, this being regulated by the ordinary space-gage on themachine controlling the extent of movement of the hand-lever O, and theattachments in no way interfere with the operation of the platen orcarriage by hand, as at present, and do not require any specialconstruction or alteration of machine.

From the foregoing description and the drawings the operation of thedevice will be sufficiently understood, and the adaptability of theinvention to other makes of type-writing machines will be apparent tothose skilled in the art, and the following claims define the nature andscope of the invention for which protection is asked.

I claim 1. In combination with the shifting platen and carriage of atype-writing machine, an oscillating lever pivoted to the carriage, apull connected to the lever, and a latch pivoted beside said lever andadapted to prevent the platen being shifted laterally when the lever isactuated, substantially as described.

2. In combination with the carriage, platen and platen-turning devicesof a type-writing machine, a lever pivoted on the carriage, a connectionbetween said lever and the platenturning devices; an oscillating leverpivoted on the carriage, aconnection between the said levers, and apull-cord connected to the oscillating lever, substantially asdescribed.

3. In combination with the platen and carriage and platen-turningdevicesof a typewriting machine, a bell-crank lever pivoted on the carriageadjacent to the platen-turning devices, a permanent flexible connectionbetween one arm of said lever and the platenturning devices, atreadle-manipulated device, and pull connections between said device andthe other arm of the lever, whereby upon depression of the treadle thelever is oscillated and turns the platen and then the carriage isreturned to right-hand position, substantially as described.

4. In combination with the shifting platen and carriage of atype-writing machine, an oscillating lever pivoted to the carriage,connections between one end of said lever and the platen-turningdevices, and a pull connected to the other end of said lever, a latchpivoted beside said lever and adapted to be released thereby and preventthe platen being shifted laterally when the lever is actuated,substantially as described.

5. In combination with the carriage,platen and platen-turning devices ofa type-writing machine, a bell-crank lever pivoted on the carriage, aconnection between one arm of said lever and the platen-turning devices;an oscillating lever also pivoted on the carriage, a link connectionbetween the said levers, a treadle, and a pull-cord connecting the outerarm of the oscillating lever and treadle, substantially as described.

6. The combination with the carriage, the laterally-movable platenthereon, and platent-urning devices of a type-Writing machine, of anoscillating lever pivoted on the carriage, connections between saidlever and the platen-turning devices, a pull connected to the saidlever, a latch pivoted beside the lever adapted when released by thelever to prevent the lateral shifting of the platen during the turningthereof, substantially as described.

7. The combination with the carriage, the shifting platen, andplaten-rotating devices of a type-writing machine; of a bell-crank leverpivoted on the carriage, a cord connecting said bell-crank with theplaten-turning devices, an oscillating lever pivoted on the carriage, alink connecting the inner end of said oscillating lever, the bell-cranklever, a latch pivoted beside the oscillating lever, adapted to preventlateral shifting of the platen when released, said latch being normallyupheld by the oscillating lever, and a pull-cord attached to the outerend of said oscillating lever, and devices for actuating said cord, allsubstantially as described.

8. The combination with the carriage, the laterally-movable platenthereon, and the platen-turning devices of a type-Writing machine of anoscillating lever pivoted on the carriage, connections between the innerend of said lever, and the platen-turning devices, a pull-cord connectedto the other end of said lever, a latch pivoted beside the lever andnormally upheld thereby, but adapted when released by the lever toprevent the lateral shifting of the platen during the turning from thestandard, a large and a small pulley journaled on the pin and connectedtogether, a spring on the pin connected to the pulley and frame, atreadle fulcrumed on the base, and the cord connecting the treadle withthe small pulley, the pull-cord being connected to the large pulley,substantially as'described.

10. The combination with the carriage, the shifting platen, andplaten-rotating and carriage-returning devices of a type-writingmachine, of a bell-crank lever pivoted on the carriage, a cordconnecting said bell-crank with the platen-turning devices, anoscillating lever pivoted on the carriage, a link connecting the innerend of said oscillating lever With the bell-crank lever, a latch pivotedbeside the oscillating lever, adapted to prevent lateral shifting of theplaten when released by the oscillating lever, said latch having abeveled lug on its outer end adapted to be engaged and' depressed by theoscillating lever so as to normally uphold the latch, a spring on saidoscillating lever for depressing the latch, a pull-cord for actuatingsaid oscillating lever, and a spring for returning the oscillating leverto normal position, all substantially as described.

In testimony that I claim the foregoing as my own I affix my signaturein the presence of two Witnesses.

CHARLES R. KELLY.

In presence of Tnos. W. WHITE, OWEN MoCANN.

